Lubricator



(No Model.)

W. P. PHILLIPS.

LUBRIGATOR.

I Patented Jul UNITED STATES PATENT OFFICE.

WILLIAM PHILLIPS, OF BOSTON, MASSACHUSETTS.

LUBRICATOR.

SPECIFICATION iorming part of Letters Patent No. 367,059, dated July 26, 1887.

(No model.)

To aZZ whom it may concern.-

Be it known that 1, WILLIAM P. PHILLIPS, of Boston, county of Suffollgand State of Massachusetts, have invented an Improvement in Lubricators, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to provide a lubricator with a retaining device for the valve which controls the discharge of oil, whereby the valve may be gradually opened and afterward held open until positively closed.

In accordance with the invention the valve is normally held against its seat by springpressure, and the upper end or head of the valve-stem is provided with a laterally-pro jecting pin or stud which remains just above the upper side of an adjustable cap or nut when the valve is seated, said adjustable cap turning upon the upper screw-threaded end of a tube inclosing the spring-held valvestem. A. projection rises from the upper side of the adjustable cap, it having a flat bearingsurface at the top provided with a central groove or recess which receives the pin or stud projecting from the valvestem, and also having inclincd sides leading from the top of the projection tothe top of the cap, over which the pin or stud rides as the valve is rotated to thereby gradually raise the "alve from its seat a distance equal to the height of the projection. The pin or stud is fixed to the valvestem, and is of sufficient length to serve as a means for rotating it. A suitable clamping device is provided for securely binding or setting the cap or not atany desired point it may be placed.

Figure 1 shows in vertical section a lubricator provided with a retaining device for the valve embodying this invention; Fig. 2, a side elevation of the adjustable cap or nut, the retaining device, and a portion of the valvestexn; and Fig. 3, a top view of the adjustable cap or not provided with the clamping device.

The oil-reservoir a, its discharge passage or nipple a,and the discharge-tube a constructed to support the lubricator, the valve steln a having the conical end to enter the dischargenipple and seat itself as a valve, the inclosingtube a for the valve-stem, having the holes 12 and the spring a are all as usual. The

upper end of the tube a is screw-threaded to receive the cap or nut c, which is provided upon its upper side with a projection, c, haw inga fiat top, 2, a central recess or groove, 3, and the inclined sides 4, the projection c being made of the height that it is desired the valve shall rise from its seat.

A pin or stud, d, is fixed to the head a of thevalve-stem and projectslaterallytherefrom. The pin or stud normally remains just above the upper side of the cap 0 when the valve is seated by the pressure of the spring a said pin or stud being so rigidly secured to the head of the valve-stem as to serve as a handle, by means of which the said stem may be rotated.

As the valve stem is rotated by the pin or stud, or in any manner, the said pin or stud passes up the inclined side 4 of the projection c and rests for a moment upon the flat top part, 2, and then enters the central groove or recess,3, in which recess it remains as long as it is desired to retain the valve open.

By providing an inclined passage, 4, for the pin or stud, as described, the valve may be opened gradually, and by providing a flat portion, 2, somewhat higher than the bottom of the recess 3, the valve may be opened a little more at the start to establish the flow of oil, after which the pin entering the recess retains the valve the desired distance from its seat.

I am aware that means have been provided for raising the valve from its seat and afterward keeping it open a definite distance; but such construction I do not, broadly, herein claim.

The cap or nut c is slitted from its outer edge inward beyond the center, as at 6, and a portion of the cap is removed to receive the head of a binding screw, 0 which passes through the cap tangential to the axis of rotation of the valve-stein, said binding-screwjoining the two portions of the cap divided by the slit 6 and acting to bind the cap firmly to the screw-threaded portion of the tube a at any desired height at which it may be set. By ap plying the binding-screw in this manner it is very effectual in the accomplishment of the result desired, and is removed from the remaining parts.

I claim- 1. In a lubricator, the oil-reservoir, dis- ICO charge-nipple, valve, valvestem, and inclosing-tube a, combined with a pin or stud, d, projecting laterally from the valve-stem, the cap or nut a, and a projection rising from the cap c,it having an inclined side, 4, and a pinreceiving groove or recess. at the top of the projection, substantially as described.

2. In a lubricator, the oil-reservoir, discharge nipple, valve, valve-stem, and inclos-' ing-tube a, combined with a pin or stud, d, projecting laterally from the valve'stem, anda cap, 0, having a projection, c, the inclined side 4, flat top portion, 2, and a pin-receiving groove or recess, 3, substantially as described. 3. In a lubricator, the oil-reservoir and dis- WM. P. PHILLIPS.

\Vitnesses:

BERNICE J. NoYEs,

L. EMERY. 

